Signal device for dispensing pumps



Oct 31, 1939. g s, HAZARD 2,l78,23

SIGNAL DEVICE FOR DISPENSING PUMPS Filed Aug. 10, 1938 2 Sheets-Sheet 1Z6 51 62 58 M 5 54 w 24 71 46 T 9 z 16. Z 5 50 72 42 T MM l 50 .56

NVENTOR (/1552; J: Hazard I 4007 W I j ATTORNEYS 0d. 31, 1939. Q. s.HAZARD 211 8.

SIGNAL DEVICE FOR DISPENSING PUMPS Filed Aug. 10, 1938 2 Sheets-Sheet 21 1 1 ZZZ d 2 2 7 1 0 100 [MI/5 .flazar U Gigs 41w a 2 M I ATTORNEYS liatentecl @ct 3E SEGNML IDEVJIGE DISPENSING 1 a-v 1 Charles Q. maaaroshoal asslg'nor Application Angus This invention relates to improvementsin pensing pumps or the like embodying a signal for disclosing Whetheran indicator has been zeroizecl prior to a dispensing operation,particularly to improvements in devices of the type disclosed. in myPatent No. 2,061,538, patented. November 17, 1936, and my co=penolinglication, Serial No, 97,133, filed August 21, loSo.

An object of my invention is to ride a com struction readily applicableto 1113, 5 different types of dispensing pump registers or ind catorswithout extensive modification the eleme s thereof, and capable ofgiving visible and/or aucl this warning when the indicators have notEccenaeroizecl prior to a dispensing operation.

A further objee of the invention is to provi actuating means for thesignalling ole-vice havl only a few parts which are of ruggedconstruction and readily manufactured, and are foositive their actuationof the signalling clerics.

A still further object of the inventio provide a warning device whichdoes not i the provision of complicated mechanisms zeroizlng theregisters on dispensing and for actuation of the warning Foe objects ofthe invention may he achieved in any of various ways and the use ofarious types of mechanisms. embodying the present invention include olesignal actuation member or arm adapted to he retained. in one nositionduring normal operation. of the dispensing" mechanism and ineli= catorhas been fully reset, out whichls movable to display or actuate thesignal on ooerat the dispensing mechanism when displaced from its Zerooosition. actuating arm may carry its encls able to display designationslnrlica a that indicator has not been reset to zero. The mesh anism mayalso be used to shutters ca1:a his or" covering and preventing visualregistr on of the quantity or the cost the liquiel dispensed, or it mayactuate means to give audible and, desired, any two or more such beactuated. in conjunction to efifecs one clesoecl result. a In the formof the invention illustratecl position of the signal actuating arm conby a linkage mechanism actuated in response to movement of manually orautomatically operated means actuated at the beginning of a dispensingoperation; such as, for example, a hose support and/or a switch forcontrolling a pump motor. However, it will be apparent that the signalactusting arm or'other signal actuating l s e loe signs lacs 21 Forexample, construction 1 {oi eas -en ployerl may he actuated any elementoi the device which is operated unou initiating dissensing operation orincidental thereto.

For a hotter imclerstanolng of the present vention reference may he tothe accompanylug eli avvings in which:

Flame l is a too nlan view oi a register emas one form of my novelsignal device, a, arts the lacing hrolien away to clisclose tletails ofthe signalling clevi 2e;

glue 2 is a view in section taken on is a v l with parts shown A i. ornethe conclusion a operation, but

aeroiaing of the dispensing regslew of the actuath'lg mech M anions shov3, the parts shown operative relationship a swoizing operation, butprior to the beginning 02 a suhse= quent dispensing operation,

5 is an additional inlet? of the arm actuating mechanism disclosingtherelations" as parts oi"; the actuating: me hanism during el'ls ensingoperation when previously heen returned. to zero. use 6 is adiagrammatic view of a construc= 5.021 by which the actuating mechanismis to operate shutters for concealing or visual eglstration o the volumeof liquid dis= gen-see when the has not previously seen aeroiserl,

we "I is a section View; oartly broken away, taken on line l-l o1 l.

the form of "nvention illustrated in ;-gs. l to a motor actuated aump orother supply shown) is utilised to deliver to a meter l8 and th ough asuitable conduits a cllspe lies-e nos-ale.

guicl through the menu.- li] a for driving indicator such a eel or typeof registering mocha other means for tar cating visually th anti/or thecost of liquid dispensed. cater or egister may suitably consist are Idrive shaft provided suitable segmental, full and transfer gears tordriving idler "ears i6 to rotate indicating drums ill in such a mannerthat each full revolution of the lowest value or fractions drum willcause of a revolution of the units drum and one complete revolution ofthe drum will cause revolution of the tens drum, thereby indicatingfractional and full gallons up to 99.9 gallons.

Ai'ter a dispensing operation has been completed the drums may bereturned to their initial or zero position by any suitable orconventional type of reset means. In the construction illustrated I haveprovided a reset means consisting of a shaft 28 provided with a handwheel 22 which drives a pinion 24 fastened thereto and disposed betweenthe side plates 28 and 28 of the register. Pinion 24 meshes with anidler gear 88 mounted for rotation on the stud shaft 82 which alsomovably supports a trolley arm 84 for pivotal movement thereabout. Thetrolley arm 84 carries two additional idler gears 88 and 88, the

latter being adapted to swing upwardly to engage a gear 48 mounted onthe maindrive shaft I4 and through rotation of crank handle 22 to returnall the drums I8 to initial position. Upward movementof the resettrolley arm 84 to move the gear 88 into engagement with the gear 48 onmain drive shart I4 is caused by the resistance of the gears 88, 88 and82 to rotation.

The main drive shaft I4 also carries a number of disks 42, each or whichis associated with a corresponding drum I8 of the register. Each of thedisks 42 is provided with a peripheral notch 44 which, when disposed inalignment at the bottom of the disks, cause the drums I8 to be disposedwith their zero indicia exposed through the aperture 48 in the casing 48of the dispensing p mp.

The drums are stopped at zero position upon resetting by engagement of aplurality of pawls ;88 in the notches 44 in disks 42. The pawls 88 arerigidly interconnected by a plurality of rods SI and are pivotallymovable about a shaft 84 extending between the side plates 28 and 28 ofthe register and are normally urged toward and into engagement with thedisks 42 by means of spring 82.

Downward movement 01' the reset trolley arm 84 to disengage gears 88 and48 is caused by engagement of a pin with an extension 88 on the arm 84.The pin 88 is carried by a lever 88 or other movable means. However, forpurposes 01' illustration, it will be herein assumed that the link 88 isconnected to the inner end 'of a support 81 for a dispensing hose.

when the hose is disposed on the hose support 81, the link 88 is movedupwardly rocking the yoke 82 in a counterclockwise direction, and whenthe hose is removed from the support the yoke 82 is rocked in aclockwise direction, as seen in Fig. 2. The link 88 may be suitablyconnected to the yoke through a goose neck lever 88 which straddlescertain of the 8| connecting the pawls 88, the lever 88 being adapted toengage one 0! the rods for moving the pawm 88 out of the notches in thedisks 42-when the hose is removed from the support.

Movement of the yoke member 82 and the zero stop pawls I8 is utilized tocontrol operation of a signal actuating arm 18 pivotally mounted on ashaft 12, mounted in the side plates 26 and 28 of the register; Asdisclosed in Figure 2,'the signal actuating arm 18 may carry at its OPPS ends signal plates I4 and 18 provided with suitable indicia or warningmeans for indicating that the register has not been reset to zero. Thelower portion of the plate I4 and the upper portion of the plate I8,which are normally concealed by the casing 48, as shown in Fig. 2, carrysuch warning means. If desired, the upper portion of the plate 14 andthe lower portion of plate 18 may also carry designations or means foradvising the customer that the mechanism has been fully reset. Thesignal actuating arm when operated thereby serves to display or actuatethe warning signal. The'incompletely reset condition of the register atthe beginning of a dispensing operation thus may be indicated byexposing the appropriate half of the signal plates I4 and I8 throughapertures I8 in the casing 48 of the dispensing pump. If the register isin its normal operating condition, that is to say, after the indicatorhas been iully reset and. the dispensing device is either in operationor at rest, or after a normal dispensing operation has been completedwith the hose returned to its support, an indication of proper resettingof the register may be displayed by signal plates 14 and I8. Should thehose be removed from its supportbefore the register has been reset, thesignal plates I4 and I8 would then be actuated to expose the indicationthat the register is in an incomplete reset condition.

Movement of the signal arm I8 is controlled by suitableactuating meanswhich, as shown, in-

clude a linkage mechanism comprising a bellcrank lever 88 pivotallymounted on a shait 82 extending between the side plates 28 and 28 of theregister. The lower arm 0! bell crank 88 is connected to goose necklever 88 by means of a link 84 and moves in the same direction as thegoose neck on oscillation thereof. Also pivotally mounted on the shaft82 is a latch lever 88 provided with a latch step 88 for receiving atcertain times a projection 88 on the signal actuating arm I8. Associatedwith the signal actuating arm I8 is an auxiliary lever 82 pivotallymounted on the shaft 12 and normally urged in a counterclockwisedirection by means of a spring 84. The auxiliary lever 82 is providedwith a notch 88 in its upper edge for receiving the projection 88 on thesignal actuating arm 18 at certain times during actuation of the signalarm. The zero stop pawls 88 are also provided with the extension 98carrying a substantially s-shaped .lever I88 at its upper end two stepsor notches I82 and I84 for cooperating with a lug I88 on the bell crank88 and a projection I88 on the auxiliary lever 82, respectively. Thelever I88 is not only movable up and down with the extension 88 on thepawls 88, but is also pivotally movable with respect thereto in either aclockwise or counterclockwise direction, as seen in Figures 2 to 5 ofthe drawings. Latch lever 88 and a-shaped lever I88 are 'normally urgedtoward each other by means of a spring 8. The, operation of lows:

When a dispensing operation is terminated the link 88 -is'moved upwardlyby the return of the hose to support 81. Link GB, however, may be thesignal device is as folotherwise actuated, on completion of a dispensing.irpa counterclockwise or upward direction. At

the sametime link 84 rocks the bell crank 88 in a counterclockwisedirection placing the various parts in the position shown in Figure 3with the lug I06 bearing against a portion of the s-shaped arm I00 andwith the projection I08 on the auxiliary arm bearing against anotherportion of the S-shaped arm I00 adjacent the step I04. The projection 90on signal actuating arm 10 rests on the step-880i latch lever 86. At thesame time the zero stop pawls bear against the periphery of the zerostop disk 42 at a point spaced from the zero stop notches 44. For thisreason the S- shaped lever I 00 is lifted slightly into a positionwhereby the step I04 cannot engage the projection I08 on the auxiliaryarm 92.

If the hose is removed from the support with the signal actuatingmechanism in this condition,

the link 66 will pull the goose-neck lever 68 and the bell crank 80 in aclockwise direction moving 'lug 406 into engagement with the latch lever86 indicating that the register has not been reset to zero.

Assuming, however,'that the device is in the condition disclosed inFigure 3, that is, a dispensing operation concluded and that theregister carries an indication of the previous dispensing operation, ifthe register is zeroized by rotating crank 22, thedisks 42 are rotatedto such a position that the notches 44 will be disposed in alignment inposition to receive zero stop pawls 50, which will be urged by thespring 52 into the notches thereby turning in a counterclockwisedirection and pulling the S-shaped lever I00 downward into the positiondisclosed in Figure 4, wherein the lower step I04 can receive theprojection I08 on the auxiliary arm 92. The S-shaped lever then is movedclockwise into the position shown by means of the spring 'I I0 in whichthe step 804 is beneath projection I08. If a dispensing operation isthen begun, downward movement of the of the notches in'disks 42 movingthe S-shaped lever I00 upwardly and the auxiliary lever 92 intoalignment with the signal arm I0. Down ward movement of the goose-necklever 68 also rocks bell crank lever causing the lug I06 to trip'latchlever 86. Under these circumstances the signal actuating arm 10,however, .does not rotate in a counterclockwise direction because ofengagement of the projection on signal actuating arm I0 with theauxiliary lever 92, thus retaining the signal actuating arm in itsnormal position with the upper half of the signal plate 14 and the lowerhalf of the signal plate I6 exposed through the aperture 18 indicatingon in spection that the register was zeroized prior to the dispensingoperation.

At the conclusion of this dispensing operation and upon upward movementof link 66, the bell crank 80 will again be rotated in acounterclockreleasing the projection I08 from engagement,

It will be apparent that any suitable type of signalling'device otherthan plates I4 and I6, or in conjunction therewith, may be employed. Asillustrated in Figure 2, the signal actuating arm I0 may be providedwith a mercury switch I20 which may be connected through suitable leadsto an alarm bell and a source of current supply whereby, when arm 10 isin a position corresponding to that in which the register has beenzeroized prior to a dispensing operation the circuit through the switchwill be open. When the signal actuating arm is rocked counterclockwisethrough failure to zeroize the register, the switch will be tilted andthe mercury will complete a circuit and cause an alarm bell to ring. Itwill be understood, of course, that the alarm bell may be usedindependently of, or in conjunction with the signal plates as may bedesired.

' Additionally, if desired, the signal actuating arm 10 may be connectedwith shutters for concealing the drums 68 on the register if theregister has not been reset to .zero. A suitable construction of thistype is disclosed diagrammatically in Figure 6 and consists of arms 422pivotally mounted on the shafts supporting the register drums l8 andcarrying at their outer ends curved shutter plates H24 capable ofsubstantially or completely covering the apertures 46, or otherapertures in the housing 48 of the dispensing pump through which volumeor cost indicators, or both, are visible. The levers i22 may beconnected by links i2i5 to signal actuating arm 10 so that upon rockingof the signal actuating arm the shutters will move into and out ofposition concealing the register drums.

A mechanically operated, audible signal of the type which normally issounded as each gallon of liquid is dispensed also may be controlled bythe signal arm and may be used in conjunction with the above describedwarning devices or separately, as desired. Such a device is illustratedin Figures 1, 2 and 'Z and may utilize the bell I30 and clapper H32pivotally mounted on the plate 28 and movable away from strikingposition by a cam i34-driven with the fractional units drum of theregister. The cam I34 is provided with a substantially radially arrangeddrop which releases the clapper I32 and allows it to strike the bell M0.The clapper I32 is preferably provided with a pivotally mounted pawl I36which engages the cam 834,- but allows the cam to be rotated in thereverse direction with the indicator during resetting.

I have illustrated a construction for controlling the clapper I32 toprevent ringing of the bell when the indicator has not previously beenI40 overlying signal actuating arm 10 and a hook 2 on the end oftheother arm I44 adapted to engage beneath and hold the clapper I32 outof engagement with the bell when the signal actuating arm I0 is rockedcounterclockwise by failure to reset the indicator to zero. A spring I46is connected to the arm I 40 normally urging the bell crank I38 toclapper lifting position. When the indicator has been zeroized, thesignal actuating arm I0 is positioned to hold the hooked 'endzll2 of thebell crank lever out of the path iii of movement of the clapper ill,allowing the latter to operate normally to strike the bell at theconclusion of the dispensing of each gallon.

All of the elements making up my improved actuating mechanism for signaldevices may be readily manufactured by stamping or otherwise forming thesame, thus avoiding the use or complicated gearing mechanism, pawls orratchets. and other control means and may be used with comparatively fewalterations with conventional numeral wheel registers or other types ofregisters consisting or either drums, hands or dials. Each type ofdevice disclosed is simple and positive in' its operation and has theadvantage that so long as the dispensing pump is properly operated, thatis, by zeroizing in each case prior to a subsequent dispensingoperation, the position of the signal actuating arm 10 remainsunchanged, thereby allowing the use of a simple mercury type of switcherother gravity actuated means for controlling the operation of am;suitable signalling device.

It should be understood, however, that the above described actuatingmechanism can take other forms than those disclosed in the drawings, andsuitable modifications can be made without departing from the invention.Therefore, the forms disclosed should be considered illustrative onlyand not as limiting the scope of the claims.

1. In a dispensing device having an indicator, means for resetting theindicator and means for stopping the indicator at zero; the combinationof a movable signal actuating arm, a latch nor mally retaining thesignal actuating arm in one position, means urging the arm towardanother position, signal means controlled by the position of the arm,means for tripping the latch at the beginning of a dispensing operation,and means actuated by the indicator stopping means for retaining thesignal in the first position when the indicator has been reset to zeroand allowing the signal to move to the other position when the indicatorhas not been reset to zero.

2. In a liquid dispensing device having a meter actuated indicator,means for resetting the indicator, means for stopping the indicator atzero and means for controlling flow of liquid to the' meter; thecombination of a signal actuating arm, a latch normally retaining thesignal actuating arm in one position when the indicator has been resetto zero, means actuated by the flow control means for moving the latchto release the signal actuating arm for movement to another position,auxiliary means controlling movement of said signal actuating arm andmeans actuated by the zero stop means for controlling the auxiliarymeans to retain the signal actuating arm in the first position when theindicator has been reset, and for allowing the signal actuating arm tomove to the other position when the indicator has not been reset.

3. In a dispensing device having an indicator and means for resettingthe indicator to zero; the combination of a movable signal actuatingarm, means normally retaining the signal actuating arm in the firstposition, means urging the arm toward a second position, signal meanscontrolled by the position of the signal actuating arm, means actuatedin response to initiation of a dispensing operation for releasing theretaining means, auxiliary means movable into and out of engagement withthe signal actuating arm to limit movement of the signal actuating arm,and

avaaso means responsive to the operation of the reset ting means forcontrolling movement of the auxiliary means to retain the signalactuating arm in the first position when the indicator has been reset tozero, and to release the signal actuating arm for movement to the secondposition when the indicator has not been reset to zero.

4. In liquid dispensing devices having an indicator, means for resettingthe indicator to zero normally retaining the auxiliary member in aposition corresponding to the second position oi the signal actuatingarm and means operatively connected with the zero stop means for movingthe auxiliary member into engagement with the signal actuating arm toretain the latter in the first position when the indicator has beenreset to zero and to allow the signal actuating arm to be moved intoengagement with the auxiliary member in the second position when theindicator has not been reset to zero.

5. In dispensing devices having an indicator, means for resetting theindicator to zero and means movable to stop the indicator at zero; thecombination of a movable signal actuating arm, means for normallyretaining the arm in a first position, means urging the arm to a secondposition, signal means controlled by the position of the arm, anauxiliary arm normally urged to a position corresponding to the secondposition of the signal actuating arm, engageable means on said signalactuating arm and the auxiliary arm, means actuated by the zero stopmeans for moving the auxiliary arm to engage the signal actuating arm inthe first position when the indicator has been reset to zero, and meansactuated in response to initiation of a dispensing operation to releasethe retaining means. 1

6. In a, dispensing device having an indicator and means for resettingthe indicator to zero; the combination of a movable signal actuatingarm, means normally retaining the arm in a first position, means forurging the arm to a second position, and auxiliary means responsive tooperation of said resetting means to restrain the signal actuating armagainst movement to the second position, and means for moving theretaining means to release the signal actuating arm upon initiation of adispensing operation.

7. In a dispensing device having an indicator, means ior resetting theindicator to zero and means movable to stop the indicator at zero; thecombination of a pivoted signal actuating arm, a pivoted auxiliary armengageable with the signal actuating arm to limit movement of the signalactuating arm, means normally retaining the signal actuating arm in afirst position, means urging the signal actuating arm to a secondposition, means urging the auxiliary arm to the second position, meansoperatively connected with the zero stop means actuated by movement ofthe zero stop means to engage the auxiliary arm and upon resetting ofthe indicator to zero to lift the auxiliary arm to hold the signalactuating arm in the first position, and means actuated in response tothe initiation of a dispensing operation to move the retaining means andrelease the signal actuating arm.

8. In a dispensing device having an indicator, means for resetting theindicator to zero and means movable to stop the indicator at zero; thecombination of a pivoted signal actuating arm, a pivoted auxiliary armengageable for limiting movement of the signal actuating arm, meansnormally retaining the signal actuating arm in first position, meansurging the signal actuating arm and the auxiliary arm to secondposition, means connected to the zero stop means operative to engage theauxiliary arm when the indicator has been reset to zero and to move theauxiliary arm' to hold the signal arm in the first position during asubsequent dispensing operation and means actuated in response toinitiation of a dispensing operation for moving the retaining means forthe signal actuating arm to release the signal actuating arm formovement to the second position when the indicator is not reset to zero.

9. In a dispensing device having an indicator, means !or resetting theindicator and means movable to stop the indicator at zero; thecombination of pivoted signal actuating arm, a pivoted auxiliary arm,means on said arms engageable to limit movement of the signal actuatingarm, a latch normally retaining'the signal actuating arm in a firstposition, means urging the actuating and auxiliary arms to a secondposition, a latch lever connected to the zero stop means and movable toengage the auxiliary arm only when the zero stop means has been moved byresetting of the indicator to zero and thereafter movable to shift theauxiliary arm to the first position on displacement of the zero stopmeans and means actuated in response to initiation of a dispensingoperation for moving the latch to release the signal actuating arm andto release the auxiliary arm from the latch lever at the conclusion of adispensing operation.

10. In a dispensing device having an indicator, means for resetting theindicator and zero stop means movable into engagement when the indicatoris at zero; the combination of a pivoted signal arm, signalling meansactuated by said arm, an auxiliary arm pivotally mounted co-axially ofand adjacent said signal arm, co-operating means on the auxiliary andsignal arms engageable when the arms are in alignment, a latch normallyretaining the signal arm in a first position, means urging the signaland auxiliary arms to a second position in which the signalling means isactuated to give a warning, a latch member connected to and actuated bythe zero stop means for engaging and moving the auxiliary arm to thefirst position for holding the signal arm at said first position duringa dispensing operation subsequent to resetting the indicator to zero andmeans movable upon initiation of a dispensing operation for moving thelatch to release the signal arm whereby the signal arm will be urgedinto engagement with the auxiliary arm in the first position if theindicator has been reset to zero and the second position if theindicator has not been reset to zero.

CHARLES S.

